Machine for molding pipe.



c. WESTEHGARD.

MACHINE FOR MOtDING PIPE. APPLICATION FILI-ID JUNE 7. 1913.

Patented June I 15,1915.

4 SHEETS-SHEET I.

GJWESTERGARD. MACHINE FOR IVIOLDING PIPE. APPLICATION FILED JUNE 1913.

L, l 43,094., v Patented June 15, 1915.

4 SHEETS-SHEET 2.

. Ano/mfr- C. WESTERGARD.

MACHINE FOR MOLDING PIPE. VAPPLICATION FILED JUNE I. 1913.

Patented June 15, 1915.

4 SHEETS-SHEET 3.

I* I I g 74 74 I I I' I I l LI I i I -I I I I' l I I I I 1 5 f 5 A TTHNEY C. WESTERGARD. MACHINE FOR MOLDING PIPE. APPLICATION F-ILED JUNE 7, 191s.

Patented vJuney 15, 1915.

4 SHEETS-SHEET 4.

WIWI/5858" A TT U19/VE Y narran sraras anar risica.

CHRIST WESTERGARD, OF EVER'ETT, WASHNG-TON, ASSIGN'R OF CNE-HALF. T6 GEORGE MCKENZIE, F EVERETT, WASHINGTON.

MACHINE FOR MOLDING PIPE.

inmensa.

T0 all whom it may concern Be it known. that I, Crnirs'r WnsrERG'ARD, citizen of the United States, residing at Everett, in the county of Snohomish and State of Nashingtom have invented a certain new and useful Improvement in Machines for Molding Pipe, of which the Vfollowing' isa specification.

My invention relates to improvements machinery l,for molding pipe and the-objects of my improvement' are to provide a-power actuated pipe molding machine embodying an improved form `of mold, improved means for raising and lowering the core :associated with said mold, an improved form of tamping bar adapted to be retardingly held within a bracket and to move upwardly through such bracket as the mold fills,`an improved form of collar for molding the flange on the end of a section of pipe and means for quicklyv removing the nished pipe from the machine and inserting a new mold and for varyingk the speed of rotation o f the mold when making dierent sizes of pipe. I attain these objects by devices illustrated in the accompanying drawings, in which- Figure 1, is a view in front elevation of a structure embodying my invention; Fig. 2, is a view in side elevation of the same; Fig. 3, is a. plan view of the same; Fig. (1, is a view in side elevation of a portion of the tamping bar and associated parts; Fig. 5 isY a plan view of thedevice illustrated inFig.

4; Fig. 6, is a sectional view on the line m, a: of Fig. 4; Fig. 7, is a plan view of the molding device; Fig. 8, is a vertical sectional view on the line y, y of Fig. 7; Fig. 9, is a fragmentary sectional view on the line e, e of Fig. 8, and Fig. 10, is a fragmentary view in side elevation of the locking and opening 16 is a cylindrical pipe core having a concentrically disposed squared shaft 17 projecting froinits top side, said shaft 17 being Specification of Letters: Patent.

`lPatented June 15, 1915.

Application Ied June 7, 1913. Serial No. 772,249.

adapted to slidably pass through'a squared hole provided in the cross-bar 15 midway of its length andtoyhave a cll'arl18 secured to its top end in such a manner'that the collar 18will engage the bar`^15 to'lift the core 16 whenthe br l5 berai'sed.

19 and'20 are spur gears iXedly secured to the top ends of the shafts 13 and 14, respectively, *andI .adapted to b actuated by an 'idler gear 21, suitably journaled in the frame 12. The idlerf gear 21 may be driven by aspiir gear. 22, which is Xedly secured to a verticalshaft'23, suitably journaled in the Vframe 12, and carrying a slidahly mounted paper friction roller 24 on its lower end.

to engage theface of a friction 25 and 1s provided with a shifting bracket 26, by

-zo The frictionroller 24 is operatively disposed means of which it may be moved vertically across the 4face ofthe disk 25 to secure variations in speed or to reverse its direction of rotation, said friction disk'25 being provided with a concentrically disposed recess 27 into which the roller 24: may be shifted when it is desired to stop the mechanism 'connected therewith.

The bracket 26v is slidably mounted on a shaft 29, Xedly secured tothe frame 12 and is'adapted to 'be moved up or down on said shaft 29 by a link 30, which link 30 is 'adapted to be pivotally secured a short distance from the upper end of an inclined link 31,V

said link 31 having its lower end 'pivotally secured tothe lower portion of the frame and its upper end pivotally connected with a bar 32, which bar 32 is provided with a.

hand hold 33 on its forward end and adapted to be moved backwardly and forwardly through a guide 34, as shown in4 Fig. 1, provided dn the frame r12. When the bar 32 is thrust backwardly it lowers the upper end of the link 30 to -act to move the friction roller 24 downwardly across the face of the friction disk 25, vand when s'aid bar 32 is moved forwardly it raises lthe links eonnect- P ed therewith and causes them to act Vto move the friction roller v24 upwardly across the friction disk 25.

The friction disk 25 is mcunted on a drive shaft 35, rotatably journaled in bearings attached to'thc frame 12, and provided with a pulley 36 on its outer'end to which power may be applied, as by a belt, to rotate said shaft. i

The cylindrical core 16 is adapted to rest y 62 nisni. A hopper 62, into which suitable ma` upon one of two rotatably mounted platforms or disks 37, 37, and is provided with a concentrically disposed hole in its lower end adapted to fit over and to be centered by la concentrically disposed lug 38 provided on the top surface of each of the rotatably mounted disks 37, 37. A two part outer wall 39 is adapted to be concentrically disposed about the core 16, in such a manner that space is left between it and the wall of said core, in which space, material, as concrete mixture, clay, wood pulp and the like may be introduced to form a pipe. The mold 39 is centered and held in its proper position on the disk 37 by hooks 40, provided on the disks37, 37 and adapted to engage with lugs 41,`=provided on the mold 39, -as illustrated in Fig. 10.

The disks 37, 37 are rotatably mounted on brackets 42, 42 which brackets 42, 42 are swingingly mounted on the lower ends of the two shafts 13 and 14, as illustrated in Fig. l, in such a manner that on'e disk 37, may be swung outwardly for the purpose of removing a finished joint of pipe while the other disk 37, may be swung inwardly in its operative position to support-a mold that is being filled. Each of said disks 37, 37

is provided with an integral bevel gear 43 concentrically disposed on its under surface near its periphery, which bevel gear 43 is adapted to mesh with, and be driven by, a pinion 44, mounted on a shaft 45, suitably journaled in the frame 12; and each of said disks 37, 37 is further provided with a concentrically disposed downwardly projecting circular ridge or track 46, adapted to bear on the roller 47 rotatably mounted on an arm 48 provided onthe bracket 42 and oppositely disposed fromthe spur gear 44 for the purpose of relieving strain and wear on thel pin 49 about which the disk 37 rotates. -An arm 50, illustrated in Fig. 8, is provided at its outer end with a hook 51 adapted to engage with the brackets 42, 42, and is held in a central position by two balanced springs 52, 52, `illustrated by broken lines in Fig. 7, which permit vit to be swung to either side, said arm 5() having its inner end pivotally connected with the frame 12. The shaft 45 is provided with a spur gear 53 which spur gear 53 is adapted to mesh with and be -driven by another spur gear 544 mounted on a shaft 55, suitably journaled in bearings on the frame 12 and belt pulley 56, and an idler pulley 57 A belt 58, is provided to connect the pulleys 56 and 57 with a pulley 59, provided on thel drive shaft 35 kand a belt shifter 60, adapted to be moved horizontally by a handle 61 that is so disposed that the belt 58 may be shifted to the pulley 56 when it is desired to actuate the mechanism connected therewith,-or to the idler 57 when it is desired to stop said mecha` The size of the opening 64 may be regulated or may be entirely closed by a slidable paddle 66, suitably associated with the bottom side of the hopper 62 and adapted to be moved horizontally across the opening 64 by a lever 67, as clearly illustratedin I' Fig. 1; and an agitator 68, disposed within the hopper 62 just above the opening -64 and mounted on a shaft 69, having a 4ulley 70, on its backwardly projecting en and Asuitably journaled in bearings provided in the frame 12 is adapted to be rotated by av belt 71, connecting the pulley 70 with a pulley 72, iXedly secured on the drive shaft 35, the agitator ,68 serving evenly to feed the material-downwardly into the spout 65; A tamping bar 73, adapted to have its lower end reciprocate between the wall of the rotating mold to tamp the material therebetween, is slidably mounted between two friction strips 74, 74, which are provided within a clamping spring 75, extending longitudinally along the front edge of a bracket 76, as illustrated in Figs. 4, 5 and 6, said spring 7 5 being adapted to have itstension aboutthe friction strips 74 variedby moving a lever 77, backwardly or forwardly over an inclined toothed bar`78 being pivotally -secured to the backward portion of the bracket 76 and adaptedto rest its front end the lever 77 be moved backwardly over the4 toothed bar 78 pressure on the edge of the r spring 75 will be released thus releasing thel friction' on the tamping bar 73. In this way the tamping bar 73 may be adjusted to resistingly move upward as the mold lls. The solidity to which the mixture may be tamped varies directly with the friction under which the tamping bar operates.

The back edge of the bracket 76 is fixedly secured to a vertical shaft 79,.which shaft 79 is slidably'mounted in bearings provided on the frame 12 and is adapted to have a reciprocatory motion impartedlto it by a connecting rod 80, pivotally secured to the shaft 7 9 by a sleeve 81, and having its lower end pivotally mounted on 'a crank-pin 82, on a crank disk83, the crank disk 83 being mounted on a. shaft4 84, journaled in suit able bearings provided on the frame 12 and having associated therewith a fixedly secured pulley 85, an idler pulley 86. A belt 87, is provided to connect the pulleys 85 and 86 with a pulley 88, provided on the drive shaft 35 and a belt shifter 89 suitably adapted to be moved horizontally is so disposed that the belt 87 may be'shifted to the pulley 85 when it is desired to actuate the tampingbar 73, or the idler 86 when'it is desired to stopI .the motion .of said tamp- ,ing bar.

lweight 94 at the llower end. Y Said spout *65' The spout 65 has its lower end ypivotally secured to the frame 12 by a support 90, and its upper end slidably mounted within a bracketA 91, and is adapted. to be held from sliding downwardlyl by a cable 92, which isv secured to the bracket 91, passes downwardly along the side of the conveyer 65, -over a .pin 93, about which it may be" wrapped if necessary, and terminates in a is also :adapted to have a horizontally reciprocating..motion imparted to it by a link 95, pivotally secured to one end` of a crank,

mounted on the shaft 13 by means of a bracket arm 101, and is adapted to be swungupwardly and lowered into the top of the mold to rest on the top of the core 16, as

'illustrated in Fig.k 8, and to have concrete mixture tamped about it to form the flange onthe end of a section of pipe. vAn opening 102, is provided in one side of the col -lar 100 through which the squared shaft 17 is adapted to pass when the collar is swung inwardly or outwardly and a link 103, pivotally secured to a lever arm 104, as clearly shown in Fig. 2, is associated with the bracket 101 for the purposeof raising or lowering the collar 100.

The vertical shaft 79 is provided with a tension spring 105 at its top to assist in sus- :taining the weight of said shaft and its 'associated parts andfurther provided with a crankv arm 106, that is pivotally secured by a link 107. To another crank arm 108 is ixedly secured one end of a shaft 109, suitably journaled in bearings on the frame l2 and is provided with ay lever 110 at its other end by means of which it may lbe turned to turn the shaft 79 and to swing the tamping bar 73 outwardly or inwardly as desired.

'The outside wall of the mold 39, Figs. 7, 8, 9 and 10. is composed .of two segments 111 and-112,' the segment 111 being provided with strips l113, 113 on either of its-edges and the segment 112 being-provided with strips, 114. 114 on anterior-usages.. Ham

Adles 115, 115 are secured to each of the strips 114, 114 by means of hinges 116, each of said handles 115, 115 'being provided with a suitable offset adapted to engage with the strip 1-13 to hold the two segments together as illustrated in Fig. 9, and each of.

said hinges 116 being provided with a pawl 117 disposed :to project in -the opposite direction from the handle 115in 'such a man ner that when said handle is swung outwardly, as shown by broken lines'in Fig. '9, the pawl 117 will be caused to swing upwardly through a notch 118, provided in the strip 114 and to press against the strip' 113 to ypry apart the two segments of themold 39.

The operation of my invention may be de scribed as follows: The outside wall of the soY mold that is to be used is placed on one of the disks 37, 37 and the mold core 16 isY raised by shifting the friction roller 24 and rotating the threaded shafts 13 and 14 to raise the cross bar 15. The disk 37 on which the outside wall of the mold has been placed is then swung inwardly until the gear teethl 43 are in mesh with the gear teethv on the pinion 44 and the hook 51 has engaged the bracket 42 to hold said disk in its proper position.. The core 16 is thenlowered and the pinion-44 is made to rotate to drive the disk 37, by shifting the belt 58, from the idler pulley 57 to the pulley 56. The spout 65 is arranged to deliver material into the mold 39, the tampingbar 18 is positioned within said mold 39 and made to reciprocate by suitably adjusting the belt 87, and the mold is allowed to ll. lfVhen the mold has .filled almost to the top, the tamping bar is removed, the collar 100 is swung into position on the top of the core 16, as illustrated in Fig. 8, the tamping bar is lreplaced and more material is introduced and tamped albout the collar 100 to form the flange of the pipe. When a section of pipe is finished the supply of concrete mixture may be shut olf, the tamping bar 78 and collar 100 swing outwardly out of the way, the core 16 raised until its bottom is above the top of the mold 39, and the disk 37 supporting the mold and section of finished pipe, swungoutwardly to allow anotherV mold which may have been placed on the other disk 37, to be swung into and 55, each pair of gears beingadapted to give the proper peripheral speed for a acertain standard sizeof pipe when placed on the shafts 45 and 55`and each set of gears ybeing `further adapted when interchanged on said shafts to give the proper peripheral speed for another Istandard size of pipe.

Obviously a separate mold and a separate core will be required for each different size of pipe and 'any desired material may be used in constructing said pipe.l

Manifestly minorchanges in details and construction .of the several parts of my machine may be made within the scope of the appended claims Without departing from the spirit of my invention or sacrificing any of its advantages.v

What I claim is: v

`1. In a pipe-molding machine, the combination with a frame, of a plurality of .horizontally swinging brackets each adaptedl to be swung to .arposition Within said frame, and'to a lateralposition with relation to the frame, revoluble disks centrally mounted upon saidbrackets and each provided on its under side with gear teeth, a driving pinion adapted to mesh with said gear teeth, and

means for locking said brackets in either of' their positions.

2. In a ipe-molding machine, the combination Wit a frame, of a plurality of horizontally swinging brackets each adapted to be swung to a position within said frame,

and to al lateral position with relation to lthe frame, revoluble disks centrallymounted upon said brackets and each provided on its under side with gear teeth, a driving pinion adapted to mesh with said gear teeth, and means for locking saidv brackets in either of their positions, comprising a spring-controlled arm pivoted to the frame at one end and provided with a hook at its opposite end.

3. In a pipe-molding machine, thecombination with a frame, of a plurality of horizontally-swinging brackets each adapted to be swung to a position within said frame, and to a lateral position with relationv to the frame, revoluble disks centrally mount-A ed upon said brackets', means for locking said `brackets ineither of their positions, a mold concentrically disposed `on each of said disks, y means for filling said molds, y and' means for revolving each of said disks when it is in position to present its mold to said filling means.

In witness whereof, I hereunto subscribe my naine this 17th day of May A. D., 1913. CHRIST WESTERGARD. Witnesses:

` FRANK WARREN, F. C. MATHENY.

, Copies of this patent may be obtained for ve cents each, by' addressing the Commissioner of Patents,

Washington, D. C. 

